Metal window frame and sash of the sliding-sash type



F. 1.1. GIBBONS.

METAL WINDOW FRAIVIE AND SASH 0F THE SLIDING SASH TYPE.

APPLICATION FILED FEB.26, |919.

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I`. I. I. GIBBONS.

METAL WINDOW FRAME AND SASH OF THE SLIDING SASH TYPE.

APPLICATION FILED FEB. 25, I9I9. T AIIIIQI PIAHIQII IIIIy A "IAEA,

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UNITED STATES PATENT OIF'FIGE.u

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l `.application ined February Q6, 1919. tierialllfo.` 279,394.

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.lie it `known that l, Farmers `JosnrI-I latins (ininons, subject olf the King oi tirent lilritaimresiding at tit.. JQhnslVVOrks, Church Lane, ,VVolverhamptom in the county oi Stafford, England, have invented new and useful :Improvements in `Metal Window Frames and clashes of the Slidingtilash Type, oli which the 'following is `a specification. i

Thisfinvention relates to metal `window 'frames and sashes oi' the horizontally sliding sash type and its object is to permit aereas to the outer surface oi the sliding sash Afor cleaning.

r.llo achieve this object the invention con sists in a construction whereby the sliding sash when slid open becomes pivoted vertically so that it can be turned inward to pro- 'Ell titi

`vide ready access to its outer surface from the inside oi? the. building.

For this purposenieans are provided to pivot the sliding sash vertically, directly on the window `traint-i, when over a lateral portion ol the `window 'frame and simultaneously to permit same to leave the guides on which it slides, from which it is previously precluded from leaving.

t constructional embodiment oi the invention is illustrated on the accompanying lilig'. l is a vertical section on a larger scale Adol' the trarne with the sash slid open.

a is the fixed window trame and Zi the sliding sash.

rl`he sash is held against the frame a and is guided when sliding by studs c and segments Z protruding vertically at the top and bottom, which engage in channels e provided in the trame a. Also a fiange f on the top and bottom of the sash b engages on the inner side oi1 the inner flange g oli each channel e.

lfVhen the sash is fully slid open over the right hand lateral portion ot the window trame, the studs c and segments (Z register with the notches h, t Jtermed in the flanges y oil.2 the channels e, and at the same time Specification of Letters Patent.

Patented July d, 1920..

t in brackets secured to the liXed :frame The sliding sash l) is thereby free to be swung inward on these pivots, as shown in dotted lines 1n Fig'. 3.

`Owing to` the slotways le, at the com` mencement of the inward swing of the sash l) thebrackets cannot hold the pivots y' to preclude :the sash from tilting iedgewise,

hence the segments al are provided at the pivot edge of the sash instead of simple studs, to afford a suiiieient length of sur tace, especially at the top `o the sash, to bear against the 'flanges g at the respective side of the notches 71, to support the sash until swung fartherinward. The pivots oi the sash are of oblong section with the long dimension in the plane of the sash and equal to the diameter oi' the holes Z, which are circular, and the narrow dimension such as to pass along the slotways z'. Consequently on swinging the sash inward the long dimension oil' the section oi? the pivots j becomes oblique to the slotways 7e and the pivots y' are retained in the eyes Z of the brackets.

'zu is a easement fastener for holding the sash Z) in its closed position.

in is a weather strip.

Although in the illustrated example, owingl to the left hand portion of the frame being in the plane oi thev sash the latter canslide to the right hand side of the iframe only, it will be understood that with awindow iframe wholly out oil.e the plane of its sliding sash, the latter could be arranged to slide and be fitted to pivot on both le'lit and right sides oi the trarne, the brackets being duplicated and, if desired, the pivots also.

l claim:

l. A metal window frame, having a window aperture and a portion lateral to said aperture, a metal horizontally sliding sash normally covering said aperture and means automatically releasing said sash directly from and automatically causing said sash to become directly pivoted on said 'trarne when said sash is slid open away from said aperture and over said lateral portion oi said trame.

2. AL metal window frame having a window aperture and a portion lateral to said aperture, a metal horizontally sliding sash normally covering said aperture, notched guide flanges and slotted eyed brackets on said frame, projections on said sash normally engaging said flanges and pivots on said sash, said projections registering with thenotches of said flanges and said pivots entering said brackets When said sash is slid open away from said aperture and over said lateral portion of said frame.

3. A metal Window'frame and metal horizontally sliding sash, notched guide flanges on said frame, studs and segments on said sash engaging said flanges and registering with the notches thereof When said sash is slid open, slotted eyed brackets on said frame and pivots on said sash adjacent to saidY segments and entering said brackets when said sash is slid open.

4. A metal Window frame and metal horizontally sliding sash, notched guide flanges on said frame, projections on said sash engaging said flanges and registering with the notches thereof when said sash is slid open, slotted e ed brackets on said frame and pivots of elongated section on said sash entering said brackets when said sash is slid open.

5. A metal window frame and met-a1 horizontally sliding sash, notched guide flanges on said frame, studs and segments on said sash engaging said flan es and re {iste-ring with the notches thereo When said sash is slid open, slotted e ed brackets on said frame and pivots o elongated section on said sash adjacent to said segments and entering said brackets when said sash is slid open.

In testimony whereof I have signed my name to this specification.

FRANCIS JOSEPH JAMES GIBBONS. 

